Wildcard SSL
A Wildcard SSL Certificate enables SSL encryption on mulitple subdomains using a single certificate. Subdomains on the certificate must all share the same primary domain.
For instance, example.com, www.example.com, blog.example.com, store.example.com, and billing.example.com could all be secured using the same wildcard SSL as they all use the same primary domain; however, billing.yoursitesdomain.com could not be used with this certificate as it is using a different primary domain.
USING THE WILDCARD ON A SUB-DOMAIN IS POSSIBLE.
AFTER you have the SSL installed,
Log into the cPanel then looked in the Security section and clicked SSL/TLS Manager. On this page I then clicked "Setup an SSL certificate to work with your site." and selected test.trilinea.com from the drop down menu. Next I selected Browse Certificates to select the ssl and clicked ok to install the ssl.
The page is now displaying TEST at https://test.yourdomain.com/
